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The TCL D2 Pro Palm Vein Smart Lock is an innovative addition to modern home security. Instead of traditional keys or fingerprint scans, this smart lock authenticates users through AI-powered palm vein recognition technology. When unlocking the door, you simply raise your hand, reminiscent of Iron Man’s iconic repulsor stance. The system boasts an impressive 99.9999% accuracy rate and responds in just 0.3 seconds, providing a quick, dependable, and hygienic access method that isn’t affected by dirt, moisture, or forgotten codes. Unlike other biometric options, this system scans the unique vein patterns in your palm, offering a contactless, sanitary solution.
Some notable features include:
– Multiple ways to unlock: In addition to palm vein recognition, users can unlock the door via keypad, key fob, physical key, the TCL Home Security App, or voice commands through Amazon Alexa or Google Assistant.
– Privacy protection: All biometric data and activity logs are securely stored locally on the device, reducing cloud-based privacy concerns.
– Extended battery life: Powered by a 10,000mAh rechargeable battery, it can last up to 10 months (some reports indicate up to 240 days), with an emergency USB-C port for backup charging.
– Smart home compatibility: Uses 2.4 GHz Wi-Fi to enable remote control, instant notifications, user management, temporary access codes, and activity tracking via the app.
– Rugged design: Certified IP55 for water and dust resistance, it can operate reliably in extreme temperatures ranging from -25°C to 70°C.
– Convenience features: Integrated doorbell function makes it easy for visitors to get your attention.
The D2 Pro belongs to TCL’s D2 series, which also includes the D2 Plus—featuring fingerprint recognition for $119.99, powered by AA batteries with an eight-month lifespan—and the base D2 model, a keypad-only version costing $79.99. The D2 Pro’s retail price is $169.99, but it has been available at a discounted rate of $135.99 during promotional events like Amazon Prime Day. This product builds on the success of the D1 Pro, which received accolades at CES and topped sales charts on Amazon for smart locks priced over $150. While Digital Trends has yet to review the TCL D2 Pro, it’s worth exploring for those interested in cutting-edge home security options.
For more options, see our top smart locks of 2025.
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